This research aimed at identifying natural organisms and the way of their expression in the technological samples of contemporary architecture. The main questions were: Which methods of utilizing natural organisms are effective on the technological works of contemporary architecture? and How and how much do they affect? This descriptive-analytical research was conducted using archival method to access the theoretical literature and surveying method for collecting the data required. Case studies were selected and analyzed from the internationally famous technological works made from the sixties (Hi-Tech style) till now. The case studies were divided into two periods, 20 and 21 centuries and 8 works were selected in each period th st (totally 16 works). The results indicated that formal and structural methods have had most used between methods of utilizing natural organisms in technological works of contemporary architecture and functional method has been neglected. These methods generally have affects on both architectural structure and space

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